Deference after null check in as_rrc

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "ASR",
                    "product": "Crane，Falcon",
                    "platforms": [
                        "Linux"
                    ],
                    "modules": [
                        "as_rrc"
                    ],
                    "programFiles": [
                        "3g.mod/lib/src/urrsir.c"
                    ],
                    "versions": [
                        {
                            "status": "unaffected",
                            "version": "0",
                            "lessThan": "2026/9/20",
                            "versionType": "date"
                        }
                    ],
                    "defaultStatus": "unaffected"
                }